Originally Posted by
sgtbilko
6 Speed Auto TUTD without BCM and without Corvette tune.
This is a Microsoft Word document with very easy and clear instructions for you to enable the Tap-up/Tap-down (TUTD) function on a 6L80e or 6L90e trans, without a BCM and without using a "Corvette tune". You'll definitely have to buy parts and know how to solder, but it ain't rocket surgery. I ain't guaranteeing it works for you but it should if you pay attention and do as you're told...lol Seriously; give it a look and let me know.